Town of Groton, MA Article V Service Connections and Appurtenances

§ 407-33 Description.

A. This article of the specifications covers the furnishing and installation of new water service connections as shown on the drawings, as specified herein, and as directed by the Water Superintendent and/or his representative.[1]

[1] Editor's Note: The drawings are located at the end of this chapter.

B. The locations of services as shown on the drawings are approximate locations. Exact locations will be established in the field by the Water Superintendent and/or his representative during construction.

C. The new water services shall include corporation stop at main, copper service pipe to the property line and a curb stop with box set at the property line. Service pipe beyond the property line is the responsibility of the homeowner to be installed by others.

§ 407-34 Submittals.

Six sets of manufacturer's literature of the materials of this article shall be submitted to the engineer for review and approval.

§ 407-35 Materials.

A. Copper tubing. Piping for buried water services shall be continuous Type K annealed seamless copper water tubing with compression connection joints conforming to ASTM B88 Standard Specifications for Seamless Copper Water Tube or United States Federal Specification WWT-799C for Tube, Copper, Seamless.

B. Corporation stops. Corporation stops shall be of brass and shall be the approved equal of Mueller Co., Decatur, Illinois, Mark II Oriseal or Cambidge Brass by Hays Corporation. The inlet shall have Mueller threads and the outlet shall have compression connection.

C. Curb stops and boxes.

(1) Curb stops shall be of brass, and shall be the approved equal of Mueller Co., Decatur, Illinois, Mark II Orisea or Cambridge Brass by Hays Corporation. The inlet and outlet shall have compression connections. Corporations shall be ball type and rated to a working pressure of 300 pounds per square inch (psi).

[Amended 10-24-2006]

(2) Each curb stop shall be provided with a cast-iron box. The valve box shall be Mueller Co., Decatur, Illinois, or approved equal. Curb stops shall be ball type and rated to a working pressure of 300 psi.

[Amended 10-24-2006]

(3) The cast-iron box shall be the extension type with arch pattern. Inside diameter of upper section shall be at least 1 1/2 inches for three-fourths-inch and one-inch curb stops and shall be at least two inches for one-and-one-half-inch and two-inch curb stops. Cast-iron boxes shall be manufactured in the United States, Canada or approved equal.

§ 407-36 Installation.

A. Water services will not be installed until the water pipe has been tested and chlorinated. Dry tapping of the water pipe will not be permitted.

[Amended 10-24-2006]

B. All work on water services shall be properly coordinated with Groton Water Department personnel.

§ 407-37 Construction.

A. The tapping machine shall be rigidly fastened to the pipe halfway between the horizontal and vertical position. The length of travel of the tap should be so established that when the stop is inserted and tightened with a fourteen-inch wrench, not more than one to three threads will be exposed on the outside. When a wet tapping machine is used, the corporation stop shall be inserted with the machine while it is still in place. Stops shall be tightened only sufficiently to give water tightness, and care must be constantly exercised not to overtighten them.

B. Service saddles shall be installed as shown on the standard house connection detail and air release detail[1] and shall conform to the manufacturer's recommended installation instructions.

[1] Editor's Note: The drawings are located at the end of this chapter.

C. Care shall be exercised in the placing and laying of tubing to be sure that the pipe does not have kinks or sharp stones or ledge which would cause damage to the pipe. At least six inches of sand shall be placed as shown on the drawings,[2] adjacent to, above and below the tubing. No stone shall be dropped on the tubing until the depth of backfill above the tubing is in excess of one foot.

[2] Editor's Note: The drawings are located at the end of this chapter.

D. Connections of new services shall be made with existing services unless otherwise directed by the Water Superintendent and/or his representative. Bushings and/or couplings shall be used as required to connect new tubing with existing services.

E. Buried curb stops and boxes shall be set plumb and centered with the box located directly over the stop. The box shall be set on a concrete block or flat stone. Earth fill shall be carefully tamped around the boxes to a distance of four feet on all sides of the box or to the undisturbed face of the trench, if less than four feet.

F. All services shall be installed with a minimum cover of five feet zero inches unless otherwise directed by the Water Superintendent and/or his representative. The service pipe shall be installed and backfilled in accordance with Part 4, Article IV, Trenching.

G. Service connections shall be tested and disinfected in accordance with AWWA standards.